Any good canvas guy will be able to do one from scratch. I redid mine and it came out better than factory and the guy used all the factory snap locations.
Thank you, that is what I am going to do. I did order a couple of sample fittings from pier supply, they have a sew in carriers that may fit the stock track. I believe I will invest in a complete cover (removable) for the back deck - it is Alaska after all.
